Wilsbach: Air Force Should Keep, and Not Divest, Block 20 F-22s July 10, 2024 | By John A. Tirpak Gen. Kenneth Wilsbach, head of Air Combat Command, wants to keep the 32 F-22 Block 20 Raptors the Air Force has been trying to divest, saying that even without upgrades, they’d be valuable in a fight.